%0 Journal Article %A W.D. Munn %T Embedding semigroups in congruence-free semigroups. %J Semigroup forum %D 1972 %P 46-60 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1972__4_133876/ %F SF_1972__4_133876